Riley Technologies Bio
Riley Technologies LLC is an American auto racing constructor and Team founded in 2001 by Bob Riley and Bill Riley. Based in Mooresville, North Carolina, the company designs and manufactures complete race cars and develops prototype programs for professional endurance and sports car racing.
The organization fields entries in the IMSA SportsCar Championship and operates as a constructor and race team, providing engineering, mechanical assembly and race support across prototype and GT categories. Bill Riley serves as the team principal and general manager.
Early Life and Background
Riley Technologies was formed in 2001 when Bob Riley and his son Bill Riley established the company following their prior work with Riley & Scott. The business moved its headquarters to Mooresville, North Carolina, in late 2006 to centralize manufacturing and race operations in a major motorsports hub.
From its outset the company combined chassis design, mechanical systems development and race engineering. Early activity included building and supplying Daytona Prototype chassis and developing customer programs for GT and touring classes, establishing Riley as a full-service constructor and team operator.
Path to MotorSports
Riley Technologies established its reputation through sustained involvement in North American sports car racing, initially focusing on Daytona Prototype chassis for the Grand-Am Rolex Sports Car Series. The chassis reached widespread adoption on the grid and delivered strong results for multiple customer teams.
Expansion into GT programs followed, with Riley building and developing competitive GT cars for manufacturers and privateer entries. Work with manufacturers and customer teams created pathways into higher-profile endurance events and manufacturer-backed programs in IMSA and international endurance racing.
Riley Technologies Career
Early Career (2001–2008)
In its first years Riley concentrated on chassis engineering and supply, becoming a prominent constructor for the Daytona Prototype class. The Riley chassis saw heavy customer use and frequent appearances at marquee endurance events, cementing the firm’s place in prototype sportscar engineering.
Riley also began GT and touring-car projects during this period, developing chassis and race-ready cars for customer programs. These efforts laid the groundwork for future collaborations with manufacturers and factory-supported efforts.
Daytona Prototype Breakthrough (2005–2015)
Riley chassis powered numerous competitive entries in the 24 Hours of Daytona and other endurance races, contributing to multiple overall victories and strong results for partnering teams. The company’s prototype work became synonymous with reliability and pace in the Grand-Am and later United SportsCar Championship era.
When the United SportsCar Championship formed, Riley remained a key supplier under the Gen3 ruleset, supporting teams adapting prototype designs to new performance standards. The company’s chassis and technical approach were a central element of several championship-contending entries during the transition.
GT and GT3 Program Development (2008–2014)
Riley developed GT machinery for a range of projects, including the Mazda RX-8 chassis campaigned by SpeedSource and a BMW M6 GT racer unveiled in 2008. The company collaborated on Chevrolet Corvette GT2 efforts and later worked with SRT Motorsports on the SRT Viper for GT competition.
The SRT Viper project included factory-supported entries that contested American Le Mans Series and IMSA GTLM competition. Riley’s involvement in GT projects extended to GT3 and customer-spec variants, and the team earned class championships and strong endurance results in multiple seasons.
LMP2, DPi and Multimatic Partnership (2017–Present)
In 2017 Riley entered a technical partnership with Multimatic to develop an LMP2 and DPi chassis program, combining Multimatic’s carbon fiber and aerodynamic responsibilities with Riley’s mechanical design and assembly capabilities. The joint program positioned Riley among the manufacturers eligible to supply LMP2 and DPi-spec cars.
Riley continued to support customer LMP2 activities and prototype development while maintaining GT and touring-car projects. The firm’s engineering role emphasized suspension design, mechanical systems and race assembly for high-level prototype programs.
2025 Team Era (2025–Present)
For the 2025 IMSA SportsCar Championship season Riley Technologies expanded operations to run two full-season entries. The effort includes fielding the No. 63 Lamborghini SC63 in the GTP class as Automobili Lamborghini Squadra Corse’s service provider and running the No. 74 Oreca 07 in the LMP2 class.
The No. 63 entry is campaigned with a factory Lamborghini lineup that includes Mirko Bortolotti, Romain Grosjean, Daniil Kvyat and Edoardo Mortara, while the No. 74 LMP2 entry lists drivers such as Felipe Fraga, Gar Robinson, Josh Burdon and Felipe Massa. Riley took responsibility for operating the Lamborghini program following a change in program management from another team.
Driving Style and Strengths
Riley Technologies’ core strengths lie in chassis engineering, mechanical systems design and race assembly. The company is widely known for delivering balanced prototype chassis and for supplying reliable components that support endurance pace and durability across long-distance events.
Notable Events and Milestones
Riley chassis have been prominent at the 24 Hours of Daytona and other endurance classics, contributing to multiple overall victories. The company’s collaborations with manufacturers and its role in high-profile GT and prototype projects — including development work for SRT Viper, BMW, Mazda and Mercedes-AMG — mark key milestones in its history.
Riley Technologies Career Wins
Across prototype and GT programs Riley-linked entries and chassis have produced significant race wins and class championships in North American sports car racing. The company’s supply of competitive Daytona Prototype chassis and its role in factory GT efforts have yielded landmark results in endurance competition.
Daytona Prototype Highlights
Riley became a leading constructor in the Daytona Prototype era, with customer teams running Riley chassis to victory in overall and class competition at the Rolex 24 at Daytona. The chassis were widely used across the grid and delivered consistent pace and durability for teams contesting endurance events.
Other Wins & Perfromances
Riley’s GT and customer programs have produced class wins and strong endurance performances, including success with the Mazda RX-8 program and championship-winning seasons in GT classes. The company has also supported entries that won endurance rounds and endurance-cup events in IMSA competition.
Riley Technologies Family
Family Background and Racing Lineage
Riley Technologies was founded by Bob Riley and his son Bill Riley, continuing a family involvement in race car design and team management. The father-and-son founding structure has guided the company’s engineering-first approach and sustained its presence across prototype and GT categories.
Personal Life
The company operates from Mooresville, North Carolina, a center for American motorsports engineering and team operations. Public personal-life details about company principals beyond their professional roles are not included here.
2025 Season Performance
The 2025 season marks an expanded factory-linked role for Riley Technologies, operating the No. 63 Lamborghini SC63 GTP entry and continuing with the No. 74 LMP2 Oreca. The Lamborghini program runs with factory drivers provided by Automobili Lamborghini Squadra Corse and places Riley in a lead operational position for the marque in IMSA competition.
On the LMP2 side the No. 74 entry continues Riley’s work supporting prototype customer teams, with a driver lineup that pairs experienced endurance racers with rising talent. The 2025 campaign emphasizes reliability, integration of manufacturer support and continued development of prototype mechanical systems to sustain endurance competitiveness.